He also said 75 Commerce Dr. would be enlarged by 3,000 square feet for a process milling room and production pharmacy room where raw materials can be pre-weighed and sorted before production begins.

The two additions, totaling 13,000 square feet, are about half the size of a 24,000-square-foot enlargement proposed two years ago for 85 Commerce Dr.

Because the expansion is smaller than the one proposed in 2012, the Suffolk County Industrial Development Agency last month reduced the tax breaks that Bio-Botanica will receive over 15 years, IDA acting executive director Anthony J. Catapano said. The incentive package now totals $460,186, a reduction of $154,000.

The cost for the latest expansion is $3.3 million, or $736,000 more than proposed in 2012.

Bio-Botanica is one of about a dozen makers of drugs, vitamins and extracts on Long Island that are bulking up to meet greater consumer demand.

Bio-Botanica has benefited from the popularity of its Nature's Answer products and more production for third parties. Nature's Answer is sold by independent health food stores and chain retailers such as GNC, The Vitamin Shoppe and Whole Foods Market.